From the Walt Disney Company's website news page:
Indiana Jones will return to the big screen on July 19, 2019, for a fifth epic adventure in the blockbuster series. Steven Spielberg, who directed all four previous films, will helm the as-yet-untitled project with star Harrison Ford reprising his iconic role. Franchise veterans Kathleen Kennedy and Frank Marshall will produce.
“Indiana Jones is one of the greatest heroes in cinematic history, and we can’t wait to bring him back to the screen in 2019,” said Alan Horn, Chairman, The Walt Disney Studios. “It’s rare to have such a perfect combination of director, producers, actor and role, and we couldn’t be more excited to embark on this adventure with Harrison and Steven.”
I know I'm not supposed to get excited about a film until proudction stills are released (because they can always get cancelled), but TOO LATE I ALREADY HAVE ALL THE EXCITEMENT.